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PartsTable / COMPONENT / 5333818
5333818 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.312 INCHES NOMINAL IN, diameter: 0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, material: STEEL COMP 1212 OVERALL, head_style: FLAT FILLISTER, style_designator: STRAIGHT, features_provided: CASEHARDENED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-533-3818, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
5333818
NSN: 5315-00-533-3818
FSC: 5315
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
height0.312 INCHES NOMINAL IN
diameter0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
materialSTEEL COMP 1212 OVERALL
head_styleFLAT FILLISTER
style_designatorSTRAIGHT
features_providedCASEHARDENED
pin_head_diameter0.467 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
under_head_length0.344 INCHES NOMINAL IN
material_document_and_classificationQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-533-3818
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5333818 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DIAMETER: 0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
PIN HEAD DIAMETER: 0.467 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
•
HEIGHT: 0.312 INCHES NOMINAL IN
•
HEAD STYLE: FLAT FILLISTER
•
UNDER HEAD LENGTH: 0.344 INCHES NOMINAL IN
•
FEATURES PROVIDED: CASEHARDENED
•
MATERIAL: STEEL COMP 1212 OVERALL
•
STYLE DESIGNATOR: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
PIN HEAD DIAMETER0.467 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
HEIGHT0.312 INCHES NOMINAL IN
HEAD STYLEFLAT FILLISTER
UNDER HEAD LENGTH0.344 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
MATERIALSTEEL COMP 1212 OVERALL
STYLE DESIGNATORSTRAIGHT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
23343FInterchangeable
interchangeable cross-reference
interchangeable
2030X4AInterchangeable
interchangeable cross-reference
interchangeable
6-6531Interchangeable
interchangeable cross-reference
interchangeable
30720Interchangeable
interchangeable cross-reference
interchangeable
83867HXInterchangeable
interchangeable cross-reference
interchangeable
0317058Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5333818?
5333818 is a PIN,STRAIGHT,HEADED.
What parts can replace 5333818?
There are 9 known substitutes for 5333818: 23343F, 2030X4A, 6-6531 and 6 more. Substitute compatibility should be verified for your specific system.
Is 5333818 still available?
5333818 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026